425 magnum

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Sep 18, 2008 | 10:44 AM

tater34

Thread Starter

Weekend Warrior

Joined: Dec 2007

Posts: 11

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425 magnum

Is there anything I have to do to put a 500 HO camshaft in a 425? Any jetting or something?

Sep 18, 2008 | 05:34 PM

drlang

Pro Rider

Joined: Mar 2005

Posts: 1,635

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From: Wisconsin

425 magnum

Nothing it bolts right in. Of course Polarises are fat from the factory, so the jetting is real close.

Sep 19, 2008 | 02:33 AM

CaptainQuint

Pro Rider

Joined: Oct 2003

Posts: 1,448

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425 magnum

It's pretty much the same motor isn't it? Just bored out? I'm not sure, is it stroked too or just bored?

Nov 3, 2008 | 09:10 AM

tater34

Thread Starter

Weekend Warrior

Joined: Dec 2007

Posts: 11

Likes: 0

425 magnum

Got it done. I am impressed by how much more power it has now. Feels better than new. Thanks for the help.

Nov 3, 2008 | 08:05 PM

ftwflh

Quad Patrol
Don't let the hp numbers fool you. Its all in how you get it to the ground. Clutching clutching clutching!

Joined: Apr 2000

Posts: 6,688

Likes: 1

425 magnum

Try finding a HO carb and intake and it will be even better

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